Mercury Viper
07-02-2014, 12:37 AM
#1
Thread Starter
Mercury Viper
Hi all
I'm not new in R/C but new in U/C, I used to fly F3A pattern but watching some C/L contests on youtube made me try this field of aeromodeling.
It seems like a new window opened to my modeling life.C/L models were populare here in the past but these days nobody knows anything about this flying style. these days every thing ends in turbins and giant 3Ds.
I have recently built a Viper by Mercury powered with an Enya .09
it has been tested with a 8.5 meter wire but it seems to be short
my question is :
what is the proper wire length for this bird?
should I use a 7 strand wire or a 3 strand wire suits?
Regards,
Ehsan
I'm not new in R/C but new in U/C, I used to fly F3A pattern but watching some C/L contests on youtube made me try this field of aeromodeling.
It seems like a new window opened to my modeling life.C/L models were populare here in the past but these days nobody knows anything about this flying style. these days every thing ends in turbins and giant 3Ds.
I have recently built a Viper by Mercury powered with an Enya .09
it has been tested with a 8.5 meter wire but it seems to be short
my question is :
what is the proper wire length for this bird?
should I use a 7 strand wire or a 3 strand wire suits?
Regards,
Ehsan
Last edited by ehsanmorshedi; 07-02-2014 at 04:10 AM.
07-02-2014, 04:16 AM
#2
I would go with about .012" to .015" or about .3 mm line. Although I am not familiar with the Laystrate brand, I would guess the thinnest one. About 42 to 52 feet long is good. That is what, about 16 meters?
07-02-2014, 06:22 PM
#4
The Laystrate lines are very good but are now made by the manufacturers of the P.A.W. engines in England and sold as Staystrate. Use the lightweight lines which are 3 strand and .015" (.38mm) and the 100 foot reel will give two lines at 15 metres which may be a fraction long for your model. The heavyweight lines are 7 strand and .018" (.46mm) from memory.
07-04-2014, 03:57 AM
#5
Since this plane is powered by an Enya .09, I would not go heavier than .012 diameter. I would start with ~45 ft. lines and if it has sufficient pull, go up to 52 ft. lines. How long the lines should be depends a lot on how well your engine runs, how heavy the plane is and how well it is trimmed.
If you can find a fellow flyer to help you trim it you can save some time and repairs.
Good luck with it.
George
If you can find a fellow flyer to help you trim it you can save some time and repairs.
Good luck with it.
George
07-06-2014, 08:56 AM
#6
Thread Starter
Hi guys,
Thanks Downunder,
and thankyou George,
I've been out of touch for some days ,
my plane weights around 13.5 oz and the engine runs well - about 12400 to 12800 rpm- with FAI fuel and 7x4 prop.
but it has not been trimmed yet
there is an old guy here who used to fly U/C in the late past , and i guess he is the only one near me who can help me to deal with the problem in the flying field , he did test my bird and of course saved it from crash, cos the plane was somehow unstable during the flight , and tended to climb with frontwind
Regards,
Ehsan
Thanks Downunder,
and thankyou George,
I've been out of touch for some days ,
my plane weights around 13.5 oz and the engine runs well - about 12400 to 12800 rpm- with FAI fuel and 7x4 prop.
but it has not been trimmed yet
there is an old guy here who used to fly U/C in the late past , and i guess he is the only one near me who can help me to deal with the problem in the flying field , he did test my bird and of course saved it from crash, cos the plane was somehow unstable during the flight , and tended to climb with frontwind
Regards,
Ehsan
